ক. recognize
খ. recognized
গ. would recognize
ঘ. would have recognized ✔
ব্যাখ্যা: If clause---এ Past Perfect Tense (had not mentioned) থাকায় এটি Third Conditional, তাই Main clause---এ 'would have + V3' (would have recognized) বসবে।
বিজ্ঞাপন

সম্পর্কিত প্রশ্ন